Improper Certificate Validation Affecting libcurl package, versions <0:7.76.1-4.amzn2.0.1


Severity

Recommended
medium

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    0.35% (73rd percentile)

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  • Snyk ID SNYK-AMZN2-LIBCURL-1702401
  • published 27 Sep 2021
  • disclosed 14 Dec 2020

How to fix?

Upgrade Amazon-Linux:2 libcurl to version 0:7.76.1-4.amzn2.0.1 or higher.
This issue was patched in ALAS2-2021-1693.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcurl package and not the libcurl package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

curl 7.41.0 through 7.73.0 is vulnerable to an improper check for certificate revocation due to insufficient verification of the OCSP response.

CVSS Scores

version 3.1
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NVD

7.5 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    High
  • Availability (A)
    None
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Red Hat

7.4 high
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SUSE

6.5 medium